Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Quasispecies composition in the V4 region of consecutive isolates obtained from cats infected with TCA FIV as determined by SSCP analysis and sequencing of the resulting bands. Sequences derived from individual bands differed in 1 to 6 nt. The ones with Lys-481 replaced are marked E for Glu or N for Asn.
